The drug war in Mexico has turned local journalism there into a potentially deadly career choice. Powerful cartels often threaten or kill hometown journalists who dare to report on the latest violence. But an innovative system for getting information out quickly -- and safely -- has recently emerged.

Social media has revolutionized the way many humans communicate. In Mexico, that means it's become one of the only ways residents can get information about drug cartel violence. But that has the government nervous.

Social media has revolutionized the way many humans communicate. In Mexico, that means it's become one of the only ways residents can get information about drug cartel violence. But that has the government nervous.

The drug war in Mexico has turned local journalism there into a potentially deadly career choice. Powerful cartels often threaten or kill hometown journalists who dare to report on the latest violence. But an innovative system for getting information out quickly -- and safely -- has recently emerged.

Social media has revolutionized the way many humans communicate. In Mexico, that means it's become one of the only ways residents can get information about drug cartel violence. But that has the government nervous.

The drug war in Mexico has turned local journalism there into a potentially deadly career choice. Powerful cartels often threaten or kill hometown journalists who dare to report on the latest violence. But an innovative system for getting information out quickly -- and safely -- has recently emerged.

Social media has revolutionized the way many humans communicate. In Mexico, that means it's become one of the only ways residents can get information about drug cartel violence. But that has the government nervous.